/****************************************************************************
* configs/zkit-arm-1769/src/up_lcd.c
* arch/arm/src/board/up_lcd.c
*
* Copyright (C) 2013 Zilogic Systems. All rights reserved.
* Author: Manikandan <code@zilogic.com>
*
* Based on configs/lm3s6965-ek/src/up_oled.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdbool.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/st7567.h>
#include <nuttx/arch.h>
#include "up_arch.h"
#include "up_internal.h"
#include "lpc17_gpio.h"
#include "lpc17_ssp.h"
#include "zkitarm_internal.h"
#ifdef CONFIG_NX_LCDDRIVER
/****************************************************************************
* Definitions
****************************************************************************/
/* Enables debug output from this file (needs CONFIG_DEBUG with
* CONFIG_DEBUG_VERBOSE too)
*/
#undef LCD_DEBUG /* Define to enable debug */
#undef LCD_VERBOSE /* Define to enable verbose debug */
#ifdef LCD_DEBUG
# define leddbg lldbg
# ifdef LCD_VERBOSE
# define ledvdbg lldbg
# else
# define ledvdbg(x...)
# endif
#else
# undef LCD_VERBOSE
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
FAR struct spi_dev_s *spi;
FAR struct lcd_dev_s *dev;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_lcdinitialize
****************************************************************************/
int up_lcdinitialize(void)
{
lpc17_configgpio(ZKITARM_OLED_RST);
lpc17_configgpio(ZKITARM_OLED_RS);
lpc17_gpiowrite(ZKITARM_OLED_RST, 1);
lpc17_gpiowrite(ZKITARM_OLED_RS, 1);
zkit_sspinitialize();
spi = lpc17_sspinitialize(0);
if (!spi)
{
glldbg("Failed to initialize SSP port 0\n");
return 0;
}
lpc17_gpiowrite(ZKITARM_OLED_RST, 0);
up_mdelay(1);
lpc17_gpiowrite(ZKITARM_OLED_RST, 1);
return 1;
}
/****************************************************************************
* Name: up_lcdgetdev
****************************************************************************/
FAR struct lcd_dev_s *up_lcdgetdev(int lcddev)
{
dev = st7567_initialize(spi, lcddev);
if (!dev)
{
glldbg("Failed to bind SSI port 0 to OLCD %d: %d\n", lcddev);
}
else
{
gllvdbg("Bound SSI port 0 to OLCD %d\n", lcddev);
/* And turn the OLCD on (CONFIG_LCD_MAXPOWER should be 1) */
(void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
return dev;
}
return NULL;
}
/****************************************************************************
* Name: up_lcduninitialize
****************************************************************************/
void up_lcduninitialize(void)
{
/* TO-FIX */
}
/******************************************************************************
* Name: lpc17_spicmddata
*
* Description:
* Set or clear the SD1329 D/Cn bit to select data (true) or command
* (false). This function must be provided by platform-specific logic.
* This is an implementation of the cmddata method of the SPI
* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
*
* Input Parameters:
*
* spi - SPI device that controls the bus the device that requires the CMD/
* DATA selection.
* devid - If there are multiple devices on the bus, this selects which one
* to select cmd or data. NOTE: This design restricts, for example,
* one one SPI display per SPI bus.
* cmd - true: select command; false: select data
*
* Returned Value:
* None
*
******************************************************************************/
int lpc17_ssp0cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
{
if (devid == SPIDEV_DISPLAY)
{
/* Set GPIO to 1 for data, 0 for command */
lpc17_gpiowrite(ZKITARM_OLED_RS, !cmd);
return OK;
}
return -ENODEV;
}
#endif /* CONFIG_ARCH_LCDS */
